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siphonoxanthin
siphonoxanthin n. 
/ˌsʌɪfn̩ə(ʊ)ˈzanθ(ᵻ)n/,
Brit. /ˌsʌɪfənə(ʊ)ˈzanθ(ᵻ)n/
, /ˌsʌɪfənə(ʊ)ˈzanθ(ᵻ)n//ˌsʌɪfn̩ə(ʊ)ˈzanθ(ᵻ)n/U.S. /ˌsaɪfənoʊˈzænθ(ə)n/
(also siphonaˈxanthin) a xanthophyll pigment, C40H56O4, present in certain green algæ./ˌsaɪfənoʊˈzænθ(ə)n/ΘΚΠ
the world > plants > particular plants > algae > [noun] > green algae > pigment present in
siphonoxanthin1949
1949 H. H. Strain in Franck & Loomis Photosynthesis in Plants vi. 162 Siphonaxanthin. Green algae of the order Siphonales yield significant quantities of this ketonic pigment that closely resembles fucoxanthin with respect to spectral absorption properties.
1964 Oceanogr. & Marine Biol. 2 217 Within the Chlorophyta, the Siphonales differ from the other members in possessing siphonein and siphonoxanthin.
1973 V. J. Chapman & D. J. Chapman Algae (ed. 2) vi. 137 The discoid chloroplasts..lack siphonaxanthin so characteristic of the siphonaceous Chlorophyceae.
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